As the Boston Red Sox get ready to start their playoff run, another Boston team, the Celtics, came together for the first time this year on Monday.The Celtics have taken on a new look after Jayson Tatum’s injury on May 12, combined with new salary rules in the NBA, started a domino effect in the Celtics organization.”As I knew we were going to end up losing super high character teammates, which is really important to me, we were replacing those guys with good character people, as well,” said Celtics president of basketball operations Brad Stevens.The Celtics may be going from being perennial NBA title contenders to underdogs, but head coach Joe Mazzulla remains steadfast.>> Download the free WMUR app to get updates on the go: Apple | Google Play <<“If I ever get to the point where I start basing my motivations on the expectations of others and people that I’ve never met before, I’ll retire quick,” Mazzulla said.Jaylen Brown is now the longest-tenured Celtic, entering his 10th season, all in Boston. He showed his leadership by going to Sunday’s New England Patriots game with a bunch of the new Celtics.”I’m trying to expedite that chemistry-building, that trust-building, so you guys can see a really good product when we get to the floor,” Brown said.While the Celtics hope to be a playoff team, Derrick White spent some time with a definite playoff team, celebrating with the Red Sox after they clinched a playoff spot last week.The Celtics popped their own champagne bottles two seasons ago. The rebuild to get back to that level begins at the first training camp practice on Tuesday.

BOSTON —

As the Boston Red Sox get ready to start their playoff run, another Boston team, the Celtics, came together for the first time this year on Monday.

The Celtics have taken on a new look after Jayson Tatum’s injury on May 12, combined with new salary rules in the NBA, started a domino effect in the Celtics organization.

“As I knew we were going to end up losing super high character teammates, which is really important to me, we were replacing those guys with good character people, as well,” said Celtics president of basketball operations Brad Stevens.

The Celtics may be going from being perennial NBA title contenders to underdogs, but head coach Joe Mazzulla remains steadfast.

>> Download the free WMUR app to get updates on the go: Apple | Google Play <<

“If I ever get to the point where I start basing my motivations on the expectations of others and people that I’ve never met before, I’ll retire quick,” Mazzulla said.

Jaylen Brown is now the longest-tenured Celtic, entering his 10th season, all in Boston. He showed his leadership by going to Sunday’s New England Patriots game with a bunch of the new Celtics.

“I’m trying to expedite that chemistry-building, that trust-building, so you guys can see a really good product when we get to the floor,” Brown said.

While the Celtics hope to be a playoff team, Derrick White spent some time with a definite playoff team, celebrating with the Red Sox after they clinched a playoff spot last week.

The Celtics popped their own champagne bottles two seasons ago. The rebuild to get back to that level begins at the first training camp practice on Tuesday.